Amiibo are the little figures that you can place on the handheld or console scanning device that lets you either use the little figure as a character in the game or unlocks special items or effects of some sort. They are collectibles that are often cool or cute.
Nintendo - amiibo™ Cards (Mario Sports™ Superstars) 5-Pack
(70)
Nintendo - amiibo Figure (Samus)
(765)
amiibo - Shovel Knight: Treasure Trove Figures (3-Pack)
(414)